Home / 5,216.90-7,199.32-2,859.08

Finding the Fourth Proportional to 5,216.90, 7,199.32 and 2,859.08

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Solution

The fourth proportional to 5,216.90, 7,199.32 and 2,859.08 is: 3,945.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,216.90 : 7,199.32 = 2,859.08 : x
  2. Step 2: Convert to fraction form
    5,216.90/7,199.32 = 2,859.08/x
  3. Step 3: Cross multiply
    5,216.90x = 7,199.32 × 2,859.08
  4. Step 4: Simplify right side
    5,216.90x = 20,583,431.83
  5. Step 5: Solve for x
    x = 20,583,431.83/5,216.90
  6. Step 6: Final answer
    x = 3,945.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.